Overflow for bath-tubs



(N0 ModeL) T. KENNEDY.

OVBRFLOW FOR BATH TUBS, SINKS, &c. No. 331,064.

1 m c a m F Patented Nov. 24, 1885.

THOMAS KENNEDY, ()F PHILADELPHIA, PENNSYLVANIA.

OVERFLOW FOR BATH-TUBS, SINKS, 84.0.

SPECIFICATION forming part of Letters Patent No. 331,08 dated November24,1885.

Application filed June 2-2, 1885.

.To aZZ whom it may concern.-

Be it known that I, THOMAS KENNEDY, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Overflows for Bath-Tubs, Sinks, &c., of which thefollowing is a specification.

My invention relates to improvements in that class of overflow devicesfor bath-tubs, sinks, &c., which consist of a stand-pipe adapted at thelower end to the outlet-opening of the tub or sink and projecting upinto thelatter to the desired overflow-level, so that when the waterreaches this level it will overflow through the pipe and outlet, the tubor sink being drained by lifting the stand-pipe, so as to open theoutlet.

One object of my invention is to so construct an overflow device of thischaracter that the stand-pipe can be readily raised or lowered byturning a handle, and can be readily detached from the operating-spindleand removed from the tub when necessary, but under ordinarycircumstances will occupy a fixed relation to the tub, and cannot beaccidentally displaced.

Other objects of my invention are to insure the proper seating of thelower end of the pipe in the outlet-opening, to provide for the cleaningof the latter as the pipe is raised and low ered, and to provide anefficient trap to pre vent the backflow of the gases from the drainthrough the overflow-pipe.

In the accompanying drawings, Figure 1 is a sectional view, partly inelevation, of my improved overflow device and sufficient of a bath-tubto illustrate the application of the same thereto; Fig. 2, a sectionalView on a larger scale of part of the device, the overflowpipe being ina different position from that shown in Fig. 1; Figs. 3, 4, and 5,perspective views showing the overflow-pipe and its operating devices,and Fig. 6 a view illustrating a modification of one feature oftheinvention.

Concealed overflows for bath-tubs, sinks, wash-basins, &c., are justlyregarded with dis favor, owing to their inaccessibility for cleansingpurposes. For this reason these concealed overflows are in many casesbeing discarded, and the use of the well-known detachable stand-pipe,projecting up into the tub or bowl to the desired overflow-level,isbeing resumed.

Serial No. 169,398. (No model.)

end of the overflow-pipe D, a grating, d, projecting below the valve b,and fitting snugly to the outlet-tube B. The overflow-pipe D is of suchheight that when the valve b,at the lower end of the same, is adapted tothe seat a on the outlet-tube the top of the pipe D will be at thedesired overflow-level of the tub. Secured to the upper end of the pipeis a ring, 6, having a yoke, f, which is contracted in width at and nearthe upper end, and is adapted to a hook, F, secured to or forming partof a stem, G, the latter passing through a sleeve, H, carried by abracket, 1, which is secured to the end of the tub. The upper end of thestem G is furnished with a suitable handle, and from said stem projectsa lug, g, which is adapted to enter the spiral groove h, formed in theinner side of the sleeve Gr. When thevalve a of the pipe D is adapted toits seat on the outlet-tube B, the lug g is at or near the bottom of thegroove 76, but by turning the stem G by means of its handle the lug g iscaused to traverse this groove, and as the lug and groove form sectionsof screwthreads the pipe D will be lifted at the same time that it isturned, a turning movement in the reverse direction causing the pipe tobe lowered to its seat. The grating d serves as a guide for the lowerportion of the pipe D, and, owing to the turning movement in raising andlowering the pipe, said grating serves to scrape away from the inside ofthe outlet-tube anything which may be deposited thereupon, the interiorof said outlet-tu be being consequently kept clean. The lower portion ofthe hook F presents wings m, projecting beyond the bridge bar a of thehook, so that when the contracted upper portion of the yoke f is appliedto said bridge-bar the wings m will overlap the opposite side bars ofthe yoke and insure the turning of the pipe D with the stern G, thewings being such, however, that those on the outer portion of the hookwill readily pass through the expanded lower portion of the yoke, whenthe pipe is liftedand moved laterally, to free the yoke from the controlof the hook when it is desired to remove the pipe for cleansingpurposes. Besides permitting the ready detaching of the pipe whennecessary, the hook and yoke connection is such that when the pipe isdown it is free from the vertical control of the hook, and the valveb istherefore at liberty to properly seat itself on theupper end of the0utlet-tube B. This feature of my invention may be carried into effectwithout the use of the hookfor instance, the upper end of the pipe B mayhave a sleeve with a transverse pin adapted to a vertical slot in thestem G, as shown in Fig. 6; but the use of the hook is preferred,because it permits the pipe to be more readily detached from the stemwhen desired.

In order to prevent the 'backflow of gases from the drain through theoverflow-pipe D, I provide a, water seal or trap by extending the lowerend of the pipe below the valve I), and placing within the outlet-tube Ba cup, to, astem on which is adapted to a bearing carried by atransverse bridge, as, in said tube, asshown in Figs. 1 and 2, the lowerend of the pipe D being at all times, when in use, submerged in thewater in,the cup w, so as to provide an effective seal. On removing thepipe the cup w can be readily withdrawn for cleaning or other purposes.

Iclaim as my invention- 1. The combination of atub, sink, or otherreceptacle having an outlet-tube, B, with the overflow-pipe D', having avalve, 6, and below the same a grating adaptedto the tube B, saidoverflow-pipe being connected at the upper end to an operating-stem, G,guided in a sleeve or hearing, H, and having a connection therewith,forming a screw-thread or a section of a screw-thread, as set forth.

2. The combination of the overflow-pipe D, having a yoke at the upperend, with the operating-stem G, having a hook, F, adapted to said yoke,as set forth.

3. The combination of the overflow-pipe D, having a yoke, f, contractedat the upper end, with theoperating-stem G, having a hook, F, with wingsm, as set forth.

4. The combination of the overflow-pipe D, the operating-stem G, guidedparallel with the axis of said pipe, and a vertically-slotted connectionbetween saidpipe and the stem, whereby a slight vertical play of thepipe independently of the stem is permitted without inter-' fering withthe lateral control of thepipe by the stem, as set forth.

5; The combination of the tub,sink, or other receptacle, the outlet-tubeleading directly 6o therefrom, the overflow-pipe havinga. valve closingthe mouth of said tube, and a detachable sealing-cup disconnected fromtheoverflow-pipe and supported in the outlet-tube below the mouth of thelatter, whereby, when the overflow-pipe is removed, saidsealing-cup isaccessible from the tub or sink, and. can be removed from theoutlet-tube, all substantially as specified.

In testimony whereof Ihave signed my name to this specification in thepresence of two subscribing witnesses.

THOS. KENNEDY.

Witnesses:

W. F. DAVIS, HARRY SMITIL.

